can i use an old AP number?

Test Preparation AP Test Preparation
1

<p>I don't know where my yellow packet is, but I found an old letter from the college board with my AP number on it. Its my number from last year, but I don't know if they change. Will it still work or should I keep looking for the yellow packet?</p>

2

<p>Yes, they change</p>

3

<p>So I can’t use it?</p>

4

<p>Someone said that Collegeboard emails it to you if you put down your email
when you were filling out the forms.</p>

5

<p>Not sure :&lt;/p>

6

<p>Just got my scores. I didn’t need my ap number. I only needed my username and password.</p>